JP2008280891A - Throttle device with built-in electronic control means - Google Patents

Throttle device with built-in electronic control means Download PDF

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JP2008280891A
JP2008280891A JP2007124748A JP2007124748A JP2008280891A JP 2008280891 A JP2008280891 A JP 2008280891A JP 2007124748 A JP2007124748 A JP 2007124748A JP 2007124748 A JP2007124748 A JP 2007124748A JP 2008280891 A JP2008280891 A JP 2008280891A
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electronic control
control means
fuel
fuel injection
throttle device
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JP4954786B2 (en
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Tsutomu Murakami
努 村上
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Nikki Co Ltd
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Nikki Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0406—Intake manifold pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0414—Air temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/06—Small engines with electronic control, e.g. for hand held tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/0015—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for using exhaust gas sensors
    • F02D35/0046—Controlling fuel supply
    • F02D35/0053—Controlling fuel supply by means of a carburettor

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To minimize an increase in new layout space and labor hours for work resulting from system change when a fuel injection system by electronic control is established by using an engine fuel supply system of carburetor specifications. <P>SOLUTION: This throttle device 1 with a built-in electronic control means includes an electronic control unit 100 as an electronic control means arranged in the fuel injection system of an engine and performing at least fuel injection control. Injectors 120, 120 which are connected to fuel passages 17, driven and controlled by the electronic control unit 100, penetrate through a throttle body 10, and inject fuel in intake passages 15, 16 and a pressure sensor 110 detecting a predetermined data used for the fuel injection control and outputting the data to the electronic control unit 100, are each arranged in the predetermined position of a throttle body 14 and formed as one device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、電子制御手段を内蔵したスロットル装置に関し、殊に、気化器仕様のエンジン燃料供給システムを使用して、電子制御による燃料噴射システムを構築するために配設される電子制御手段を内蔵したスロットル装置に関する。   The present invention relates to a throttle device with built-in electronic control means, and in particular, with built-in electronic control means arranged for constructing an electronically controlled fuel injection system using a carburetor engine fuel supply system. Relates to the throttle device.

汎用エンジン等、簡易な構成とコストの低廉さが要求されるようなエンジンシステムにおいては、図４に示すような構成の気化器２で燃料を吸気通路１５，１６に吸引させてエンジンに供給するのが一般的である。このような気化器仕様のエンジン燃料供給システムを、電子制御による燃料噴射システムに改造または変更する場合、スロットルボディ、インジェクタ、燃料圧力レギュレータ、燃料ギャラリ、燃料噴射制御手段としての電子制御ユニットを既存の燃料供給システムに追加し、さらに電子制御ユニットにエンジン運転状態等のデータを入力するための圧力センサや温度センサ等のセンサ類を配設する必要がある。   In an engine system that requires a simple configuration and low cost, such as a general-purpose engine, the fuel is sucked into the intake passages 15 and 16 by the carburetor 2 having the configuration shown in FIG. It is common. When remodeling or changing such an engine fuel supply system with a carburetor specification to a fuel injection system by electronic control, an electronic control unit as a throttle body, an injector, a fuel pressure regulator, a fuel gallery, and a fuel injection control means is installed. In addition to the fuel supply system, it is necessary to provide sensors such as a pressure sensor and a temperature sensor for inputting data such as an engine operating state to the electronic control unit.

そのため、システムの変更において多数の部品を取り付ける手間を要するため、燃料供給システムの電子制御化を妨げる要因の一つとなっていた。また、気化器仕様のエンジンシステムにおいては、搭載機種のエンジン配置スペースに余裕の少ないものが多く、新たな部品を加えて配置するためのスペースの確保が設計上困難な場合も多い。   For this reason, it takes time and effort to install a large number of components in changing the system, which has been one of the factors that hinder the electronic control of the fuel supply system. In addition, in the engine system of the carburetor specification, there are many engine installation spaces with a small margin, and it is often difficult in terms of design to secure a space for adding new parts.

この問題に対し、吸入空気量を調整するスロットル装置にインジェクタ及び電子制御手段を一体化した電子制御手段を内蔵したスロットル装置（吸気装置）が、特開２００１―７３８２８号公報や特開２００１−２６３１２８号公報に提案されている。このように、スロットルボディ内にインジェクタと電子制御手段とを内蔵させて３つの主要部品を１つに纏めたことにより、電子制御による燃料噴射システムへの改造の手間を大きく軽減させている。   In order to solve this problem, a throttle device (intake device) in which an electronic control unit in which an injector and an electronic control unit are integrated in a throttle device that adjusts an intake air amount is disclosed in Japanese Patent Laid-Open Nos. 2001-73828 and 2001-263128. Proposed in the Gazette. As described above, the injector and the electronic control means are built in the throttle body, and the three main parts are combined into one, thereby greatly reducing the trouble of remodeling the fuel injection system by electronic control.

しかし、この３つの主要部品をコンパクトに纏めた電子制御手段を内蔵したスロットル装置を、気化器の配設位置に取付けるだけでは、電子制御手段に各種データを入力するためのセンサ類を所定の位置に配設する手間が残っている。また、このセンサ類をシステムに配設するには、その出力信号配線を電子制御手段に入力するための外部接続用コネクタをスロットルボディ外面に設けて接続することが必要となる。しかし、そのコネクタの突出方向が予め決まっていることもあって、エンジン周囲の配置スペースに余裕の少ない場合においては、システムの変更が一層困難となりやすい。   However, by simply installing a throttle device incorporating electronic control means, which is a compact collection of these three main components, at the position where the carburetor is disposed, sensors for inputting various data to the electronic control means are provided at predetermined positions. There is still a trouble of disposing it. In order to arrange these sensors in the system, it is necessary to provide and connect an external connection connector for inputting the output signal wiring to the electronic control means on the outer surface of the throttle body. However, since the protruding direction of the connector is determined in advance, it is more difficult to change the system when the space around the engine is small.

さらに、システムを変更するにあたり、エンジンに供給する燃料の圧力を調整して燃料供給管内で燃料が気化した場合でもこれを排出可能とする燃料圧力レギュレータを、新たに取り付ける手間およびそのための配設スペースも余分に必要となる。そのため、部品追加に要するスペースを最小限としながら燃料供給システムの変更を容易に実現できる手段が望まれていた。
特開２００１−７３８２８号公報 特開２００１−２６３１２８号公報 Furthermore, when changing the system, it is necessary to adjust the pressure of the fuel supplied to the engine and to discharge the fuel pressure regulator even when the fuel is vaporized in the fuel supply pipe. Also need extra. Therefore, there has been a demand for means that can easily change the fuel supply system while minimizing the space required for component addition.
JP 2001-73828 A JP 2001-263128 A

本発明は、上記のような問題点を解決しようとするものであり、気化器仕様のエンジン燃料供給システムを使用して電子制御による燃料噴射システムを構築する場合に、システム変更に伴う新たな配置スペース及び作業の手間を最小限に抑えられるようにすることを課題とする。   The present invention is intended to solve the above-described problems. When an electronic fuel injection system is constructed using a carburetor-specific engine fuel supply system, a new arrangement accompanying a system change is provided. It is an object to minimize space and work.

前記課題を解決するためになされた本発明は、エンジンの燃料噴射システムに配設され、少なくとも燃料噴射制御を実行する電子制御手段を備えた電子制御手段を内蔵したスロットル装置において、燃料通路が接続され電子制御手段に駆動制御されてスロットルボディを貫通する吸気通路内で燃料を噴射するインジェクタと、燃料噴射制御に用いる所定のデータを検出して電子制御手段に出力する少なくとも１種類のセンサとが、スロットルボディの所定位置に設けられて１つの装置を構成している、ことを特徴とする。   In order to solve the above-mentioned problems, the present invention provides a throttle device that is disposed in a fuel injection system of an engine and includes at least an electronic control unit that includes an electronic control unit that executes fuel injection control. And an injector that is controlled by the electronic control means to inject fuel in an intake passage that penetrates the throttle body, and at least one sensor that detects predetermined data used for fuel injection control and outputs the data to the electronic control means. A device is provided at a predetermined position of the throttle body.

このように、スロットルボディに電子制御手段を内蔵したことに加え、これにインジェクタと所定のセンサを設けて１つの装置に纏めたことにより、例えば気化器仕様の燃料供給システムを電子制御による燃料噴射制御システムに改造する場合に、これを気化器と入れ替えて配設するだけでシステムを構成する主要部品の殆どが配設を完了するとともに、部品増設に要する新たな配置スペースを最小限に抑えながら新たなシステムを構築することができる。   In this way, in addition to the electronic control means being built in the throttle body, an injector and a predetermined sensor are provided in the throttle body and combined into a single device. When remodeling to a control system, replacing it with a vaporizer only completes the installation of most of the major components that make up the system, while minimizing the new layout space required to add components A new system can be constructed.

また、その電子制御手段を内蔵したスロットル装置は、気化器仕様の燃料供給システムにの気化器を配設する吸気管路の所定箇所に、そのまま取付け可能な接続部の構成及び全体形状を備えたものとすれば、電子制御による燃料噴射システムへの変更作業が極めて容易である。   Moreover, the throttle device incorporating the electronic control means has a configuration and an overall shape of a connecting portion that can be directly attached to a predetermined portion of an intake pipe where a carburetor is disposed in a carburetor specification fuel supply system. If so, it is very easy to change to the fuel injection system by electronic control.

さらに、上述した電子制御手段を内蔵したスロットル装置において、スロットルボディに設けるセンサに、少なくとも温度センサまたは圧力センサの少なくとも一方を含んでいる場合には、電子制御手段にエンジン運転状態に関するデータを出力するためのセンサ類をシステムに配設する手間及び出力配線を電子制御手段に接続する手間を大きく削減することができる。   Further, in the throttle device incorporating the electronic control means described above, if the sensor provided in the throttle body includes at least one of a temperature sensor and a pressure sensor, data relating to the engine operating state is output to the electronic control means. Therefore, it is possible to greatly reduce the trouble of arranging sensors for the system and the trouble of connecting output wiring to the electronic control means.

さらにまた、上述した電子制御手段を内蔵したスロットル装置において、燃料噴射圧力を所定圧力に調整するための燃料圧力レギュレータが、スロットルボディの所定位置に設けられたものとすれば、燃料圧力レギュレータを別途配設する手間を要することなく、電子制御による燃料噴射システムを一層容易に構築できる。   Furthermore, if the fuel pressure regulator for adjusting the fuel injection pressure to a predetermined pressure is provided at a predetermined position of the throttle body in the throttle device incorporating the electronic control means described above, the fuel pressure regulator is separately provided. A fuel injection system based on electronic control can be constructed more easily without the need for installation.

電子制御手段を内蔵したスロットル装置にインジェクタ及び所定のセンサを備えた本発明によると、システムを構成する複数の主要部品が１つの装置に纏められて、システム変更に伴う新たな配置スペース及び作業の手間を最小限に抑えることができる。   According to the present invention in which an injector and a predetermined sensor are provided in a throttle device having a built-in electronic control means, a plurality of main components constituting the system are combined into one device, and a new arrangement space and work accompanying a system change are collected. Time and effort can be minimized.

以下に、図面を参照しながら本発明を実施するための最良の形態を説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

図１乃至図３は、本発明における実施の形態である電子制御手段を内蔵したスロットル装置１を示している。電子制御手段を内蔵したスロットル装置１は、気化器仕様の汎用エンジンの燃料供給システムを使用して電子制御による燃料噴射システムを構築する場合等において、システムにおける気化器の配設位置に気化器に代わってそのまま配設することを想定したものであるが、そのスロットルボディ１０内に電子制御手段としての電子制御ユニット（ＥＣＵ）１００を備えていることに加え、インジェクタ１２０，１２０、吸気圧力を検出する圧力センサ１１０、燃料圧力レギュレータ１３０を一体的に備えて１つの装置を構成している。   1 to 3 show a throttle device 1 incorporating an electronic control means according to an embodiment of the present invention. The throttle device 1 with built-in electronic control means is used as a carburetor at the position where the carburetor is arranged in the system when a fuel injection system by electronic control is constructed using a fuel supply system of a general-purpose engine with carburetor specifications. Instead, it is assumed that the throttle body 10 is disposed as it is, but in addition to the electronic control unit (ECU) 100 serving as an electronic control means in the throttle body 10, the injectors 120, 120 and the intake pressure are detected. The pressure sensor 110 and the fuel pressure regulator 130 are integrally provided to constitute one device.

図１は本実施の形態における正面図であり、電子制御手段を内蔵したスロットル装置１は図４に示す気化器２とほぼ同程度のサイズに形成され、その配設に要するスペースの形状・大きさもほぼ同様である。また、燃料供給システムにおいて吸気管側に連結させる両端面側のボルト孔や吸気通路１５，１６の開口端の位置及び形状が共通している。従って、気化器２を取り付ける位置に本実施の形態の電子制御手段を内蔵したスロットル装置１をそのまま容易に取り付けられるようになっている。   FIG. 1 is a front view of the present embodiment, and a throttle device 1 incorporating an electronic control means is formed to be approximately the same size as the carburetor 2 shown in FIG. The same is true. Further, the positions and shapes of the bolt holes on both end surfaces connected to the intake pipe side and the open ends of the intake passages 15 and 16 in the fuel supply system are common. Therefore, the throttle device 1 incorporating the electronic control means of the present embodiment can be easily attached as it is at the position where the carburetor 2 is attached.

図２は図１のＸ−Ｘ線に沿う断面図であり、電子制御手段を内蔵したスロットル装置１は、その下部、即ち図４に示した気化器２のフロート室２２に相当する部分に、これとほぼ同体積のＥＣＵ室１４を備えており、その内部に電子制御ユニット１００を収装している。また、その側方には電子制御ユニット１００と外部との入力・出力配線を接続するためのコネクタ１４０，１５０が配設されている。尚、この電子制御ユニット１００は電子基板からなり、一般的な燃料噴射制御プログラムに加え他の車両制御用のプログラムを記憶手段に有してこれを実行する機能を有したものであっても良い。   FIG. 2 is a cross-sectional view taken along line XX in FIG. 1, and the throttle device 1 incorporating the electronic control means has a lower portion thereof, that is, a portion corresponding to the float chamber 22 of the vaporizer 2 shown in FIG. The ECU chamber 14 having substantially the same volume as this is provided, and the electronic control unit 100 is accommodated therein. In addition, connectors 140 and 150 for connecting input / output wirings between the electronic control unit 100 and the outside are disposed on the side thereof. The electronic control unit 100 is made of an electronic board, and may have a function of executing another vehicle control program in a storage means in addition to a general fuel injection control program. .

スロットルボディ１０の外面に接続部を露出するコネクタ１４０，１５０は、電子制御ユニット１００やセンサ類への電力の供給、エンジン回転速度等、この位置では検出できないエンジン運転状態のデータを検出したセンサ類からの出力信号の入力、或いは、このスロットルボディ１０とは異なる位置に配設したアクチュエータや表示手段等に電子制御ユニット１００の出力信号を送信する出力配線を接続するものである。   The connectors 140 and 150 that expose the connecting portions on the outer surface of the throttle body 10 are sensors that detect engine operating state data that cannot be detected at this position, such as power supply to the electronic control unit 100 and sensors, engine rotation speed, and the like. An output wiring for transmitting an output signal of the electronic control unit 100 is connected to an input of an output signal from the control unit 100 or an actuator or a display means disposed at a position different from the throttle body 10.

本実施の形態において、このように比較的大きなスペースを要するＥＣＵ室１４及び外部接続用のコネクタ１４０，１５０を、気化器２のフロート室の位置に相当する部分にこれとほぼ同程度のスペースを占める状態で配置したことにより、燃料噴射制御システム構築に要する部品を増設するための新たな配置スペースを要さないものとなり、エンジン周囲の配置スペースに余裕がない場合でも、新たなスペースを確保する必要なしに容易に新たなシステムを構築することができる。   In the present embodiment, the ECU chamber 14 and the external connection connectors 140 and 150 that require such a relatively large space are provided with approximately the same space in a portion corresponding to the position of the float chamber of the vaporizer 2. By arranging it in the occupied state, it eliminates the need for a new arrangement space for adding the parts required for the construction of the fuel injection control system, and ensures a new space even when there is not enough room around the engine. A new system can be easily constructed without necessity.

そして、電子制御手段を内蔵したスロットル装置１は、吸入空気量調整のためのスロットルバルブを備えたスロットルボディ１０に、電子制御手段としての電子制御ユニット１００を内蔵したことに加え、スロットルボディ１０の壁体を通る燃料通路１７が接続されているとともに吸気通路１５，１６に噴射口側を露出してインジェクタ１２０，１２０が設けられ、且つ、エンジン運転状態を示す所定のデータを検出して電子制御ユニット１００に出力する、圧力センサ１１０等のセンサ類をスロットルボディ１０に備えている。   The throttle device 1 with built-in electronic control means includes a throttle body 10 equipped with a throttle valve for adjusting the intake air amount, and an electronic control unit 100 as electronic control means. A fuel passage 17 passing through the wall is connected, and the injectors 120 and 120 are provided in the intake passages 15 and 16 so as to expose the injection port side, and predetermined data indicating the engine operating state is detected and electronically controlled. Sensors such as a pressure sensor 110 that output to the unit 100 are provided in the throttle body 10.

本実施の形態においては、圧力センサ１１０の他に吸入空気の温度を検出する図示しない圧力センサを備えて電子制御ユニット１００の燃料噴射制御に検出データを使用するようになっている。尚、このスロットル装置の位置で検出できる他のエンジン運転状態に関連するデータとしては、スロットル開度、燃料圧力、燃料温度等が挙げられ、これらを検出するセンサ類を必要に応じてスロットルボディ１０に設けても良い。   In the present embodiment, in addition to the pressure sensor 110, a pressure sensor (not shown) that detects the temperature of the intake air is provided, and detection data is used for fuel injection control of the electronic control unit 100. The data relating to other engine operating states that can be detected at the position of the throttle device include the throttle opening, fuel pressure, fuel temperature, and the like. May be provided.

また、前記スロットルボディ１０の上面側には、燃料噴射圧力を所定圧力に調整するための燃料圧力レギュレータ１３０が、その作用部位を燃料通路１７側に接続して設けられている。これにより、燃料圧力の低圧化を可能とするとともに、気化器仕様の燃料供給システムで使用するプランジャ往復タイプの燃料ポンプをそのまま使用してシステムを構築できるものとなる。尚、スロットルボディ１０の内部を通る燃料通路１７は、図２のＹ−Ｙ線に沿う断面図である図３に示すような配置が想定されるが、そのインジェクタ１２０に遠くない位置に燃料圧力レギュレータ１３０を接続すればよい。   Further, a fuel pressure regulator 130 for adjusting the fuel injection pressure to a predetermined pressure is provided on the upper surface side of the throttle body 10 with its operating part connected to the fuel passage 17 side. As a result, the fuel pressure can be reduced, and the system can be constructed using the plunger reciprocating fuel pump used in the fuel supply system of the vaporizer specification as it is. The fuel passage 17 passing through the inside of the throttle body 10 is assumed to be arranged as shown in FIG. 3 which is a cross-sectional view taken along the line YY in FIG. 2, but the fuel pressure is not far from the injector 120. A regulator 130 may be connected.

さらに、前述したようにスロットルボディ１０の所定位置に吸気通路１５，１６側に検出部を接続して吸入空気の温度を検出する吸気温センサが配置されており、検出した吸気温データを電子制御ユニット１００に出力してこれを燃料噴射制御に使用している（図示せず）。   Further, as described above, the intake air temperature sensor for detecting the temperature of the intake air by connecting the detection unit to the intake passages 15 and 16 side at a predetermined position of the throttle body 10 is arranged, and the detected intake air temperature data is electronically controlled. This is output to the unit 100 and used for fuel injection control (not shown).

電子制御手段を内蔵したスロットル装置１をこのような構成としたことにより、気化器仕様のエンジン燃料供給システムを利用して電子制御による燃料噴射制御システムを構築または改造する場合等において、気化器２の配設位置にこの電子制御手段を内蔵したスロットル装置１を取り付けるだけで、システムの主要部品となるスロットル装置、インジェクタ、電子制御装置、エンジン運転状態を検出するための各種センサ類、燃料圧力レギュレータが同時に取り付けられる。そのため、これだけでシステムがほぼ完成することからシステム変更に要する手間を最小限に抑えることが可能となる。   Since the throttle device 1 incorporating the electronic control means has such a configuration, the carburetor 2 is used when a fuel injection control system by electronic control is constructed or modified using an engine fuel supply system of a carburetor specification. The throttle device 1, which is the main part of the system, the injector, the electronic control device, various sensors for detecting the engine operating condition, and the fuel pressure regulator Are attached at the same time. Therefore, since the system is almost completed with this alone, it is possible to minimize the effort required to change the system.

尚、上述の説明において、気化器仕様のエンジン燃料供給システムを使用して電子制御による燃料噴射システムを構築する場合を説明したが、システム設計の段階から燃料噴射システムとして製作してもよいことは言うまでもない。この場合においても、システムを構成する主要部品が１つの装置に纏められることにより、システム構築における作業の手間が削減されるとともに、部品増設に伴ない新たに要する配置スペースが最小限に抑えられるため、設計の自由度が高いものとなる。   In the above description, the case of constructing an electronically controlled fuel injection system using an engine fuel supply system of a carburetor specification has been described. However, it may be manufactured as a fuel injection system from the system design stage. Needless to say. Even in this case, since the main components constituting the system are combined into one device, the labor for system construction can be reduced, and the newly required layout space accompanying the addition of components can be minimized. Therefore, the degree of freedom of design is high.

以上、述べたように、気化器仕様のエンジン燃料供給システムを使用して電子制御による燃料噴射システムを構築する場合に、本発明により部品増設のための配置スペース及び作業の手間を最小限に抑えることができ、システムの変更を容易に行えるようになった。   As described above, when an electronic fuel injection system is constructed using an engine fuel supply system with a carburetor specification, the present invention minimizes the layout space and work effort for adding parts. The system can be changed easily.

本発明の実施の形態を示す正面図。The front view which shows embodiment of this invention. 図１のＸ−Ｘ線に沿う断面図。Sectional drawing which follows the XX line of FIG. 図２のＹ−Ｙ線に沿う断面図。Sectional drawing which follows the YY line of FIG. 気化器仕様の燃料供給システムに配置される気化器の正面図。The front view of the carburetor arrange | positioned at the fuel supply system of a carburetor specification.

符号の説明Explanation of symbols

１ スロットル装置、１０ スロットルボディ、１４ ＥＣＵ室、１５，１６ 吸気通路、１７ 燃料通路、１００ 電子制御ユニット、１１０ 圧力センサ、１２０ インジェクタ、１３０ 燃料圧力レギュレータ、１４０，１５０ コネクタ
1 throttle device, 10 throttle body, 14 ECU chamber, 15, 16 intake passage, 17 fuel passage, 100 electronic control unit, 110 pressure sensor, 120 injector, 130 fuel pressure regulator, 140, 150 connector

Claims (4)

エンジンの燃料噴射システムに配設されるとともに少なくとも燃料噴射制御を実行するための電子制御手段を内蔵したスロットル装置において、前記電子制御手段に駆動制御されてスロットルボディを貫通する吸気通路内で燃料通路からの燃料を噴射するインジェクタと、燃料噴射制御に用いる所定のデータを検出して前記電子制御手段に出力する少なくとも１種類のセンサとが、前記スロットルボディの所定位置に設けられて１つの装置を構成していることを特徴とする電子制御手段を内蔵したスロットル装置。   In a throttle device that is disposed in a fuel injection system of an engine and has at least electronic control means for executing fuel injection control, a fuel passage in an intake passage that is driven and controlled by the electronic control means and penetrates the throttle body An injector for injecting fuel from the engine and at least one type of sensor for detecting predetermined data used for fuel injection control and outputting the predetermined data to the electronic control means at a predetermined position of the throttle body. A throttle device having an electronic control means built therein. 気化器仕様の燃料供給システムにおいて気化器を配設する吸気管路の所定箇所に、そのまま取付け可能な接続部の構成及び全体形状を備えていることを特徴とする請求項１に記載した電子制御手段を内蔵したスロットル装置。   2. The electronic control according to claim 1, wherein in the fuel supply system of the carburetor specification, a configuration and an overall shape of a connecting portion that can be attached as it is are provided at a predetermined portion of an intake pipe line in which the carburetor is disposed. Throttle device with built-in means. 前記スロットルボディに設けるセンサに、少なくとも温度センサまたは圧力センサの一方を含んでいることを特徴とする請求項１または２に記載した電子制御手段を内蔵したスロットル装置。   3. The throttle device with built-in electronic control means according to claim 1, wherein the sensor provided in the throttle body includes at least one of a temperature sensor and a pressure sensor. 燃料噴射圧力を所定圧力に調整するための燃料圧力レギュレータが、前記スロットルボディの所定位置に設けられていることを特徴とする請求項１，２または３に記載した電子制御手段を内蔵したスロットル装置。
4. A throttle device incorporating electronic control means according to claim 1, wherein a fuel pressure regulator for adjusting a fuel injection pressure to a predetermined pressure is provided at a predetermined position of the throttle body. .
JP2007124748A 2007-05-09 2007-05-09 Throttle device with built-in electronic control means Expired - Fee Related JP4954786B2 (en)

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